Design and create an Interactive Visual Novel

Design and code up an Interactive Visual Novel very similar to [login to view URL] in scope. The admin interface needs to be easy to use. I want the interface to be easy for my staff to add new characters and new storylines for characters and music for the characters. We need to be able to add minigames that the users can access at home We need to be able to add stores like the one I am requesting below in the admin panel During Gameplay the surfer can look at their profile to see: Their Love Meter Their Diary During Gameplay There will be awards for successful completion of an adventure or storyline The ability to save state with cookies There needs to be a way for girls to gain: intelligence charm athletic ability elegance artistic skills energy money There is only one main character that is visually customizable and only seen when looking at her profile Change clothes Change hairstyles and color Change facial features Change skin color Change accessories that can be bought at the clothes store The folks the main user interacts with are static images but they can have different facial expressions The town will have 3 backgrounds one for dusk and dawn. one for day and one for night There are multiple places for the main character to go like: Work Cafe Apartment Town Square Clothing Store Potion Store Furn Store Book Store Art Gallery Restaurant Beauty Salon Gym The program design needs to be modular so we can upgrade things easily at a later date This program has to run on a Linux server I would prefer the program be written in php and javascript but that is not a must